1 files changed, 82 insertions, 0 deletions

diff --git a/include/asm-arm/arch-omap/uncompress.h b/include/asm-arm/arch-omap/uncompress.h
new file mode 100644
index 000000000000..3e640aba8c20
--- /dev/null
+++ b/include/asm-arm/arch-omap/uncompress.h
@@ -0,0 +1,82 @@
+/*
+ * linux/include/asm-arm/arch-omap/uncompress.h
+ *
+ * Serial port stubs for kernel decompress status messages
+ *
+ * Initially based on:
+ * linux-2.4.15-rmk1-dsplinux1.6/include/asm-arm/arch-omap1510/uncompress.h
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: Greg Lonnon <glonnon@ridgerun.com>
+ *
+ * Rewritten by:
+ * Author: <source@mvista.com>
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/serial_reg.h>
+#include <asm/arch/hardware.h>
+
+unsigned int system_rev;
+
+#define UART_OMAP_MDR1          0x08    /* mode definition register */
+#define OMAP_ID_730             0x355F
+#define ID_MASK                 0x7fff
+#define check_port(base, shift) ((base[UART_OMAP_MDR1 << shift] & 7) == 0)
+#define omap_get_id() ((*(volatile unsigned int *)(0xfffed404)) >> 12) & ID_MASK
+
+static void
+putstr(const char *s)
+{
+        volatile u8 * uart = 0;
+        int shift;
+
+#ifdef  CONFIG_OMAP_LL_DEBUG_UART3
+        uart = (volatile u8 *)(OMAP_UART3_BASE);
+#elif   CONFIG_OMAP_LL_DEBUG_UART2
+        uart = (volatile u8 *)(OMAP_UART2_BASE);
+#else
+        uart = (volatile u8 *)(OMAP_UART1_BASE);
+#endif
+
+        /* Determine which serial port to use */
+        do {
+                /* MMU is not on, so cpu_is_omapXXXX() won't work here */
+                unsigned int omap_id = omap_get_id();
+
+                if (omap_id == OMAP_ID_730)
+                        shift = 0;
+                else
+                        shift = 2;
+
+                if (check_port(uart, shift))
+                        break;
+                /* Silent boot if no serial ports are enabled. */
+                return;
+        } while (0);
+
+        /*
+         * Now, xmit each character
+         */
+        while (*s) {
+                while (!(uart[UART_LSR << shift] & UART_LSR_THRE))
+                        barrier();
+                uart[UART_TX << shift] = *s;
+                if (*s++ == '\n') {
+                        while (!(uart[UART_LSR << shift] & UART_LSR_THRE))
+                                barrier();
+                        uart[UART_TX << shift] = '\r';
+                }
+        }
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()